baber/WOPTO huggingface dataset:
Patent GB-715298-A (GB)
Title: Improvements in or relating to boxes for universal transmission joints
IPC: F16D3/24
Filed: 1952-07-29
Abstract: 715,298. Universal joints. BELLOMO, A. July 29, 1952 [Aug. 1, 1951], No. 19145/52. Class 80 (2) A cover for a universal joint comprises two hemispherical end caps 2, 3 urged by a spring or springs 4 into engagement with a tubular member 7, sealing rings being provided between the tubular member and the caps and between the caps .and the joint parts Bearing rings 11 of synthetic resin. rubber or bronze are shaped to fit the surface of the caps 2, 3 and are positioned by sheet metal rings 12. One ring 12 may be integral with or fixed to the member 7 and the other ring may be retained therein by split pins, pieces of wire or the like 15. Sealing rings 13 of felt or rubber are held in place by rings 14 of sheet metal. Further rings 17 seal the gaps between the joint parts and the end caps. A single spring or, as shown, a plurality of springs act between a joint part 21 and a ring 19 fixed to the cap 3 to maintain a pressure at the seals. The joint part 21 is splined to the shaft 26 and adjustably positioned thereon by a split or resilient ring 23 engaging one of a number of grooves 33 in the shaft and a ring 22 screwed to the member 21 and locked by a tab 24. A ring 28. engaging right and lefthanded threads on the hub 38 and a ring 29 both of which are splined to the shaft, locks the hub 38 to the shaft against a resilient washer 32 and acts through rings 34, 35 to lock the inner race of a bearing 27 to the shaft. A ring 30 engaging a groove in the shaft provides an abutment for the ring 29.
Patent GB-474266-A (GB)
Title: Improvements in rectifier systems for television purposes
IPC: H04N5/202
Filed: 1936-07-10
Abstract: 474,266. Television; valve detecting circuits. RADIOAKT.-GES. D. S. LOEWE. July 10, 1936, No. 19198. Convention date, July 11, 1935. [Classes 40 (iii) and 40 (v)] A television detector directly coupled to a following amplifier has a characteristic such that the output increases more rapidly than the input to compensate for decreasing eye sensitivity. Fig. 2 shows an anode bend detector 3 directly coupled to an output amplifier 7, a resistance condenser combination 9, 10 being provided to accentuate high frequencies. The carrier frequency is prevented from affecting the cathode-ray tube 8 by compensating condenser 11 connected to points of opposite phase. In a modification, Fig. 2a (not shown), the condenser is used in the detector anode circuit instead of the circuit of the output valve, alternatively, a push-pull detector, Fig. 2b (not shown), may be used which achieves the same object and does not impose a capacitive load on the circuit. The synchronizing impulses are preferably taken off before the output stage 7 by an amplitude filter 14 and transformers 15, 16. The grid of the output valve is biassed positively so that' it is operative only on image signals while the same bias applied to the amplitude filter renders this inoperative except on synchronizing signals. Fig. 3 shows an arrangement in which anode voltage for the detector 3 and for biassing the output stage 7 and the amplitude filter 14 are obtained from the voltage across series resistance 21. Fig. 4 shows a pentode detector, a diode in the envelope serving as the amplitude filter in which overmodulation is prevented by limiting the anode potential. The Specification as open to inspection under Sect. 91 also describes an arrangement, Fig. 5 (Cancelled, not shown), in which the output amplifier is dispensed with and an amplitude limiter diode and a full wave diode rectifier directly feeding the cathode-ray tube are contained in a common envelope. This subjectmatter does not appear in the Specification as accepted.
Patent GB-803256-A (GB)
Title: Production of manganese
IPC: C22B47/00
Filed: 1957-06-19
Abstract: Pure manganese is produced by vaporization of a carbon-containing manganese alloy under reduced pressure, the alloy being used in the form of granules and being treated under such conditions of temperature and pressure that the individuality of the granules is preserved during the treatment. The temperature may be increased in stages, the first stage being at a temperature below the melting point of the alloy to cause the formation of a porous graphitic coating on the surface of each granule.  In later stages the temperature may rise above the melting point without causing the granules to coalesce.
Patent GB-810828-A (GB)
Title: Improvements in or relating to a method of and means for manufacturing paper
Inventor: WERNER TYRRELL H
IPC: B64D37/06
Filed: 1955-07-05
Abstract: 810,828. Sized, mineral-filled paper. WARREN CO., S. D. July 5, 1955 [Aug. 11, 1954], No.19406/55. Class 96. In making sized, mineral-filled paper, finely divided particles of a mineral filler are mixed with an aqueous emulsion or dispersion of a water-repellent dimer of a ketene having a hydrocarbon group containing 6 to 20 carbon atoms so that the particles are partially or totally coated with the dimer. The coated particles are then mixed with an aqueous suspension of cellulosic fibres, e.g. containing sodium carbonate or alum, starch animal glue or karaya gum, and the resulting pulp is made into a web. During or after drying of the paper, some of the diner may migrate to the cellulosic fibres. The diner may be an aliphatic ketene diner, e.g. hexyl, decyl, tetradecyl, hexadecyl or eicosaryl ketene diner or a ketene dimer derived from oleic acid or a mixture of oleic and stearic acids. Polyoxyethylene sorbitan trioleate may be used to emulsify the dimer. The mineral filler may be calcium or magnesium carbonate, talc, titanium dioxide or clay. The amount of coated filler in the paper may be between 1 and 50 per cent of its air-dry weight. The amount of dimer in the paper is, preferably, at least 0.1 per cent of the air-dry weight of the cellulosic fibres and the dimer in the paper, but 0.05 per cent has been found adequate in the case of unsaturated alkyl ketene dimers. The particles of the mineral filler, after being coated with the ketene dimer, and before being added to the suspension of cellulosic fibres, may be partially or totally coated with an aqueous dispersion of one or more mannogalactans, e.g. a plant mucilage containing mannogalactans, and, if desired, starch. Suitable mucilages are locust bean and guar gum and those obtained from the flame tree, the Indian rhododendron, the huisache shrub, the Kentucky coffee tree, the mesquite and the palo verde. The air-dry weight of the mannogalactan coating may be 0.5 per cent of that of the mineral filler. Specifications 522,204, 778,791 and U.S.A. Specification 2,627,477 are referred to.
Patent GB-186204-A (GB)
Title: Improvements in propeller pencils
IPC: B43K21/08
Filed: 1921-07-19
Abstract: 186,204. Barrey, F. F., and Bina, F. C. July 19, 1921. Pencil-holders. - In a pencilholder of the kind having a headpiece separable from the barrel and divided into two portions attached respectively to the screw and nut elements of the propelling- mechanism, one part of which is enclosed in a tube small enough to form between itself and the barrel a receptacle for refills the nut-carrying element is detachably secured to the barrel by a spring clip. The rotatable part 3 of the head-piece is attached to a slotted tube 10 in which slides the lead-carrier 7 provided with an apertured projection 6 passing through the slot in the tube 10 into engagement with a spiral 5, preferably in the form of a wire soldered in a tube 4 which is connected to a washer 21 forming the fixed part of the headpiece. Secured to the washer 21 is a disc carrying a pocket-clip 17 and a spring clip 15 the end of which enters a recess in the barrel 1 to prevent rotation or removal of the tube 4. A tube 19, enclosing the tube 4 is also secured to the washer 21 and is closed at its inner end, to form a receptacle for refills, by a detachable cap 20 perforated to permit passage of the lead-carrier 7.
Patent GB-1150056-A (GB)
Title: Improvements in or relating to Flash Evaporators
IPC: B01D3/06
Filed: 1966-05-03
Abstract: 1,150,056. Evaporators, multi-stage, flash type. APPLIED RESEARCH & ENG. Ltd. and R. STARMER. 3 May, 1966, No. 19532/66. Heading B1B. In an evaporator comprising a succession of flash chambers 11 interconnected by orifices 17 for the flow of liquid being evaporated, e.g. brine, the chambers being maintained at progressively lower pressures from the first chamber 14 to the last 15, and a condenser 13 being provided in each chamber, the first three chambers are disposed at progressively higher levels, and the liquid rises from one of these chambers to the next owing to the pressure differences between them. The chambers later in the succession are at progressively lower levels, but may alternatively be arranged in two tiers, one above the other. The liquid is introduced into the first chamber through heater 10 and control valve 9. The liquid leaving chamber 15 is pumped through the condensers 13 to the heater 10 and the first chamber 14. The last chamber 15 has an independent condenser,16.
Patent GB-873394-A (GB)
Title: Improvements relating to processes and apparatus for granulating metal and slag melts
IPC: C22B7/04
Filed: 1959-06-08
Abstract: 873,394. Granulating. HUTTENWERKE SALZGITTER A.G. June 8. 1959 [June 16, 1958], No. 19573/59. Class 82(2) Metal or slag is granulated by directing a stream thereof tangentially into an upright funnel having a Venturi-like outlet with such high kinetic energy that it emerges in the form of a coherent paraboloidal hollow body from which drops separate and fall into a trough of water. As shown, metal or slag flows down channel 4 and follows path 5 emerging as a paraboloidal hollow body 7 from which drops 9 fall into trough 3. The size of the granules may be varied by varying the angle of the Venturi outlet.
Patent GB-478320-A (GB)
Title: Improvements in and relating to hoists
IPC: B66C7/00
Filed: 1936-07-15
Abstract: 478,320. Fairleads. COOPER, W. J. F., and AABACAS ENGINEERING CO., Ltd. July 15, 1936, No. 19618. [Class 78 (v)] In a travelling electric hoist the bearing casing h of the load rope pulley g is provided at its ends with stub spindles h<1>, h<2> which are rotatably mounted in brackets i, j on the frame a, the arrangement being such that the axis of rotation of the spindles coincides with the centre of the rope k as it passes from the pulley g to the hoisting drum. When it is desired to provide for the adjustment of the swivelling axis, the brackets i, j are mounted in a cradle which can be moved upon the frame a. A shield l limits the movement of the rope k.
Patent GB-898074-A (GB)
Title: Improvements in or relating to devices for producing and controlling a stepwise advance, more particularly in pilgrim-step cold rolling mills
IPC: B21B21/04
Filed: 1960-06-03
Abstract: 898,074. Rolling. SCHWERMASCHINENBAU HEINRICH RAU VEB. June 3, 1960 [Nov. 2, 1959], No. 19823/60. Class 83 (4). A bloom truck for a pilger rolling mill is advanced by rotation of an axially stationary feed spindle 3, Fig. 1, which engages a non-rotatable nut 11 attached to the truck. The spindle 3 is rotated by gearing 8, 9, 10 actuated by a rack 7 in turn reciprocated by telescopic fluidoperated pistons 4 and 14. The first part of the rack stroke is effected by the piston 4 until it reaches a stop 13 after which the stroke is completed by inertial movement of the telescopic piston 14. The stroke of the rack is limited by an adjustable resilient stop 15 and retrogressive movement of the bloom truck during the feed cycle is prevented by the inclusion of a free wheel friction ratchet 18. A fluid-operated fork 25 is provided for the engagement of a quick-return drive for the bloom truck.
Patent GB-676926-A (GB)
Title: Method of cleaning tin surfaces
Filed: 1950-08-10
Abstract: A siloxane resinous coating is removed from a tin surface by treatment, at a temperature of at least 30 DEG C, with a solution of an alkali metal hydroxide or a quaternary ammonium hydroxide in a liquid glycol ether containing less than 1 per cent by weight of water and having an operating flash point of at least 90 DEG C, the pH of the solution being at least 11, said ether having the general formula RO (R1O) nX, wherein R is an alkyl or monocyclic aryl radical, R1 is an alkylene radical, p  has a value of at least 1 and X is an alkyl or monocyclic aryl radical or a hydrogen atom. Specified ethers are tripropylene glycol monomethyl, isomethyl or mono-n-butyl ether, dipropylene glycol monoethyl and monoisopropyl ethers, propylene glycol monophenyl and mono-o-chlorophenyl ethers, ethylene gylcol monophenyl, mono-p-tetra-butylphenyl, monobenzyl and dibutyl ethers, tetraethylene glycol dimethyl and dipropyl ethers and diethylene glycol diphenyl ether nitrile.  A specified siloxane is methylphenylsiloxane
Patent GB-813754-A (GB)
Title: Magnetic storage device
IPC: G11B5/35
Filed: 1956-06-28
Abstract: 813,754. Magnetic recording and reproducing apparatus. STANDARD TELEPHONES & CABLES Ltd. June 28, 1956 [June 29, 1955], No. 20007/56. Class 40 (2). In a method of reading intelligence from a magnetic record, an oscillatory motion is caused to occur between record medium and the reading head or heads in a direction substantially normal to the record medium. The method is of particular use in digital computors in which it is merely necessary to detect one of two states, i.e. magnetization or non-magnetization of the medium, irrespective of the velocity of the medium past the reading head/s. Thus when the medium is in a magnetized state, the relative oscillation induces an E.M.F. in the head, but when unmagnetized no E.M.F. is generated. Fig. 3 shows an embodiment in which a head 1 is mounted on a moving coil system associated with the pole 3 of a magnet system. The head is provided with a number of coils 2 so that the head can perform a number of functions of read, record and erase. When reading is being effected, alternating current is supplied to the movable coil. Fig. 4 shows a system in which a number of heads 10 are mounted on a plate 9 coupled to a base plate 7 by a piezo-electric element 8, which is caused to oscillate at its own characteristic frequency by means of an applied voltage. Fig. 6 (not shown) illustrates an apparatus employing a plurality of such units.
Patent GB-574062-A (GB)
Title: Improvements in and relating to apparatus for fettling tiles
IPC: B28B11/18
Filed: 1943-12-01
Abstract: 574,062. Moulding tiles. BOULTON, Ltd., W., and WHATMORE, .J. W. Dec. 1, 1943, No. 20025. [Class 87 (ii)] In apparatus for fettling tiles, in order that the output from a number of tile-presses can be dealt with by a single fettling-machine, a relatively slow moving conveyer is arranged to receive the tiles from the presses and to deliver them to a device for spacing the tiles apart before they are delivered by the said device to a fettling-machine. Each tile is slewed round in the fettling-machine when one pair of side edges has been fettled, whereupon the other side edges are similarly treated, and the purpose of the spacing-device is to give sufficient clearance for the slewing movement. In the apparatus shown, 3 is a slow conveyer which receives the output from the presses, either directly or via auxiliary conveyers, and delivers them to an inclined runway comprising rollers 4, preferably graduated in size. The runway serves to space the tiles apart before they pass on to a belt 8, running at a higher speed, which conveys them through the fettling-machine. 10, 13 are the fettling knives which respectively act upon the tiles before and after they are slewed round by a device 11. The runway 4 may be replaced by a short conveyer running at a still higher speed. Another arrangement may be adopted in which the spacing apart of the tiles takes place after the first fettling operation and before they are slewed round.
Patent GB-348447-A (GB)
Title: Improvements in air filtering apparatus
IPC: B01D46/02
Filed: 1930-07-02
Abstract: 348,447. Air filters. SMITH, F. C., 162, Grosvenor Road, London. July 2, 1930, No. 20139. [Class 8 (ii).] An air filtering apparatus arranged as a selfcontained u n i t in a casing a containing a motor driven fan b, inlet and outlet conduits d, e and a filtering element consisting of cells or pockets f having cellulose wadding inserted therein. A cover g is suitably arranged to provide access to the filter cells.
Patent GB-711843-A (GB)
Title: Curable polymeric composition and method of making the same
IPC: C08C19/34
Filed: 1950-08-15
Abstract: A curable composition comprises a high copolymer of a di-olefinic compound and an olefinic compound containing the group <FORM:0711843/IV (a)/1> , where R1 is an aryl or alkyl group, and R is a carbon atom and is an aliphatic carbon atom in all cases where R1 contains alpha to the carbonyl group no aliphatic carbon atom having hydrogen directly attached thereto, and containing a material which at elevated temperatures, not destructive to the copolymer, comprises an aliphatic aldehyde.  Examples of the carbonyl compounds are olefinic ketones such as methyl-isopropenyl ketone and methyl vinyl ketone, and nuclear acetyl styrenes, e.g. para-acetyl styrene and para-acetyl-alphamethyl styrene. Specified diolefinic compounds are butadiene-1, 3, isoprene, 2, 3-dimethyl butadiene, 1- and 2-cyanobutadiene and chloroprene. The copolymer may also contain a third component, e.g. acrylonitrile, methyl and ethyl acrylates and methacrylates, methacrolein, styrene, alpha-methyl styrene and dimethyl vinyl ethynyl carbinol.  The aldehydic compound may be formaldehyde, paraformaldehyde, trioxane, hexamethylene tetramine, or a polymer containing aldehyde groups and may be present as a third component in the copolymer itself, e.g., methacrolein.  It is preferably used in amounts of 0.5 to 5 per cent. by weight of the copolymer. Also included are thermoplastic phenol-aldehyde resins, particularly of formaldehyde with alkyl-substituted phenols such as amyl- and octyl-phenols, used in small amounts, e.g. 1 or 2 per cent. The diolefinic content of the copolymer is generally more than 40 per cent. and the ketone should comprise at least 4 per cent. and preferably 15 to 30 per cent. for a tight cure.  Curing is effected under heat and pressure and usually in the presence of an acidic catalyst, e.g. salicylic acid, benzene and toluene sulphonic acids and their anhydrides and acid chlorides, alkyl esters of phosphoric acid, stearic acid and channel black. Example 1 describes the preparation of a butadiene/methyl-isopropenyl-ketone copolymer in aqueous medium in the presence of sodium stearate, potassium persulphate and an alkyl mercaptan, the copolymer having a Mooney viscosity of 40. Specification 711,853 is referred to.
Patent GB-1418079-A (GB)
Title: Automatic camshaft lathe
IPC: B23Q5/34
Filed: 1973-04-27
Abstract: 1418079 Machining cam-shafts; work transferring; framcs REGIE NATIONALE DES USINES RENAULT 27 April 1973 [9 June 1972] 20268/73 Headings B3B and B3T An automatic cam-shaft lathe for shaping the cams disposed on the same shaft comprises a frame, a machining station having two centres 14 between which the workpiece (cam-shaft) is horizontally supported in the longitudinal direction of the frame, a plurality of tools 13 mounted on respective tool carriers 12 which are displaceable both radially and angularly with respect to the longitudinal axis of the centres. The radial movement of a tool carrier is effected from a cam 10 by way of a pivotable lever 20 and the angular pivoting of the carrier is effected from cam 11 by way of tappet 24 and link 26. The whole tool carrying apparatus may be retracted to facilitate changing of a workpiece by way of fluid actuated means 42 carried on a bridge portion 5 of the frame and attached to the tool carriers by link assembly 38-41. In the embodiment described two identical machining stations 1 and 2 are provided with similar tool carriers the operating cams 10 and 11 for each station being mounted on respective cam-shafts 8 supported from the bridge portion 5. Work steadies 46 are provided which support the camshafts in each work station and are actuated by a common actuator 47. The rotation of the cam-shafts 8 is effected from a motor 17 via belts 18 and gearing 19, which also effects rotation of work spindles and by way of chucks 58 and thus rotation of the workpieces (cam-shafts). Detecting means 54 is provided to ensure the correct orientation between the cam-shafts and the workpiece prior to commencement of a machining operation. In the described embodiment half of the cams on the cam-shafts are machined simultaneously and the workpieces are laterally indexed so that one work station effects machining of one half of the cams and the second work station machines the remaining cams. Alternatively at each work station one half of the cams are machined, the tools are withdrawn and the workpiece (cam-shaft) is indexed axially to bring the unmachined cam portions into alignment with the tools which then are machined. The axial indexing of the cam-shaft is effected by axial displacement of the head and tail stock spindles by fluid pressure means 15, 15b. Transfer apparatus 52 is provided beneath the machining stations and which is laterally displaceable to move the cam-shafts between the station and into and out of the stations to effect the successive feed of cainshafts through the machine. The lower part of the machine frame is provided with a well or shoot 51 for the discharge of swarf which is carried away from the machine in known manner.
Patent GB-1337331-A (GB)
Title: Heat-sealable film
IPC: B29C48/08
Filed: 1971-04-19
Abstract: 1337331 Multilayer films MINNESOTA MINING & MFG CO 19 April 1971 [26 Jan 1970] 20274/71 Headings B5B and B5N A composite heat-sealable film comprises a support film of biaxially oriented polyethyleneterephthalate to which is bonded, e.g. by simultaneous co-extrusion of both layers, a sealing film of at least 0-2 mils thickness which has a lower m.p. and is thinner than the support film and which comprises a copolymer in the molar proportions 70/30 to 90/10 of ethyleneterephthalate with ethylenehexahydroterephthalate. The film is able to form a face-to-face heat-seal of peel strength #1¢ lb/in and can be creased without cracking after being heated for 15 min. at 220 C. The overall film thickness may be about 1 mil. and is suitable for packaging "cookin-the-bag" foodstuffs. The sealing layer may also be biaxially oriented.
Patent GB-803460-A (GB)
Title: Improvements in or relating to molybdenum alloys
IPC: C22C27/04
Filed: 1957-06-27
Abstract: A molybdenum-base alloy suitable for use as a cutting tool material has the following composition: Mo 93.3-97.4 per cent, Co 2.5-6 per cent, Ni 0.1-0.7 per cent.  The alloy is prepared by forming a water slurry of molybdenum dioxide, nickel acetate and cobalt acetate, evaporating the water and reducing the compounds to the respective metals by heating the mixture to 1000-1200 DEG C. in hydrogen for up to six hours.  The finely divided metal powder is compressed to the desired shape, sintered under non-oxidizing conditions at a temperature of from 1550 DEG C. to 1660 DEG C. for one to three hours and then the alloy is age hardened by heating it in an inert atmosphere, preferably hydrogen, at 650 DEG C. to 750 DEG C. for from four to twenty-four hours.
Patent GB-1450759-A (GB)
Title: Battery charging systems
IPC: H02J7/14
Filed: 1975-05-14
Abstract: 1450759 Road vehicle electrical systems ROBERT BOSCH GmbH 14 May 1975 [4 June 1974] 20293/75 Heading H2H A battery charging system for a vehicle having lighting devices 15, comprises a generator 11 having a field winding 16 controlled by a voltage regulator 17 which has an error producing circuit comprising a voltage divider 21, 22 and a Zener diode 19, the voltage regulator reference being varied by means of a temperature dependent resistor 24 so that the output of the the generator is reduced when the lights 15 are switched on, by means of a switch 14, compared to the generator output when the battery 13 is being charged without the vehicle lights in use. The voltage regulator may be of a semiconductor or of an electromagnetic type.